/*
 * Copyright 2012-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef OSSL_CRYPTO_SPARC_ARCH_H
#define OSSL_CRYPTO_SPARC_ARCH_H

#define SPARCV9_TICK_PRIVILEGED (1 << 0)
#define SPARCV9_PREFER_FPU (1 << 1)
#define SPARCV9_VIS1 (1 << 2)
#define SPARCV9_VIS2 (1 << 3) /* reserved */
#define SPARCV9_FMADD (1 << 4)
#define SPARCV9_BLK (1 << 5) /* VIS1 block copy */
#define SPARCV9_VIS3 (1 << 6)
#define SPARCV9_RANDOM (1 << 7)
#define SPARCV9_64BIT_STACK (1 << 8)
#define SPARCV9_FJAESX (1 << 9) /* Fujitsu SPARC64 X AES */
#define SPARCV9_FJDESX (1 << 10) /* Fujitsu SPARC64 X DES, reserved */
#define SPARCV9_FJHPCACE (1 << 11) /* Fujitsu HPC-ACE, reserved */
#define SPARCV9_IMA (1 << 13) /* reserved */
#define SPARCV9_VIS4 (1 << 14) /* reserved */

/*
 * OPENSSL_sparcv9cap_P[1] is copy of Compatibility Feature Register,
 * %asr26, SPARC-T4 and later. There is no SPARCV9_CFR bit in
 * OPENSSL_sparcv9cap_P[0], as %cfr copy is sufficient...
 */
#define CFR_AES 0x00000001 /* Supports AES opcodes */
#define CFR_DES 0x00000002 /* Supports DES opcodes */
#define CFR_KASUMI 0x00000004 /* Supports KASUMI opcodes */
#define CFR_CAMELLIA 0x00000008 /* Supports CAMELLIA opcodes */
#define CFR_MD5 0x00000010 /* Supports MD5 opcodes */
#define CFR_SHA1 0x00000020 /* Supports SHA1 opcodes */
#define CFR_SHA256 0x00000040 /* Supports SHA256 opcodes */
#define CFR_SHA512 0x00000080 /* Supports SHA512 opcodes */
#define CFR_MPMUL 0x00000100 /* Supports MPMUL opcodes */
#define CFR_MONTMUL 0x00000200 /* Supports MONTMUL opcodes */
#define CFR_MONTSQR 0x00000400 /* Supports MONTSQR opcodes */
#define CFR_CRC32C 0x00000800 /* Supports CRC32C opcodes */
#define CFR_XMPMUL 0x00001000 /* Supports XMPMUL opcodes */
#define CFR_XMONTMUL 0x00002000 /* Supports XMONTMUL opcodes */
#define CFR_XMONTSQR 0x00004000 /* Supports XMONTSQR opcodes */

#if defined(OPENSSL_PIC) && !defined(__PIC__)
#    define __PIC__
#endif

#if defined(__SUNPRO_C) && defined(__sparcv9) && !defined(__arch64__)
#    define __arch64__
#endif

#define SPARC_PIC_THUNK(reg)                                                                       \
    .align 32;                                                                                     \
    .Lpic_thunk : jmp % o7 + 8;                                                                    \
    add % o7, reg, reg;

#define SPARC_PIC_THUNK_CALL(reg)                                                                  \
    sethi % hi(_GLOBAL_OFFSET_TABLE_ - 4), reg;                                                    \
    call.Lpic_thunk;                                                                               \
    or reg, % lo(_GLOBAL_OFFSET_TABLE_ + 4), reg;

#if 1
#    define SPARC_SETUP_GOT_REG(reg) SPARC_PIC_THUNK_CALL(reg)
#else
#    define SPARC_SETUP_GOT_REG(reg)                                                               \
        sethi % hi(_GLOBAL_OFFSET_TABLE_ - 4), reg;                                                \
        call.+ 8;                                                                                  \
        or reg, % lo(_GLOBAL_OFFSET_TABLE_ + 4), reg;                                              \
        add % o7, reg, reg
#endif

#if defined(__arch64__)

#    define SPARC_LOAD_ADDRESS(SYM, reg) setx SYM, % o7, reg;
#    define LDPTR ldx
#    define SIZE_T_CC % xcc
#    define STACK_FRAME 192
#    define STACK_BIAS 2047
#    define STACK_7thARG (STACK_BIAS + 176)

#else

#    define SPARC_LOAD_ADDRESS(SYM, reg) set SYM, reg;
#    define LDPTR ld
#    define SIZE_T_CC % icc
#    define STACK_FRAME 112
#    define STACK_BIAS 0
#    define STACK_7thARG 92
#    define SPARC_LOAD_ADDRESS_LEAF(SYM, reg, tmp) SPARC_LOAD_ADDRESS(SYM, reg)

#endif

#ifdef __PIC__
#    undef SPARC_LOAD_ADDRESS
#    undef SPARC_LOAD_ADDRESS_LEAF
#    define SPARC_LOAD_ADDRESS(SYM, reg)                                                           \
        SPARC_SETUP_GOT_REG(reg);                                                                  \
        sethi % hi(SYM), % o7;                                                                     \
        or % o7, % lo(SYM), % o7;                                                                  \
        LDPTR[reg + % o7], reg;
#endif

#ifndef SPARC_LOAD_ADDRESS_LEAF
#    define SPARC_LOAD_ADDRESS_LEAF(SYM, reg, tmp)                                                 \
        mov % o7, tmp;                                                                             \
        SPARC_LOAD_ADDRESS(SYM, reg)                                                               \
        mov tmp, % o7;
#endif

#ifndef __ASSEMBLER__
extern unsigned int OPENSSL_sparcv9cap_P[2];
#endif

#endif /* OSSL_CRYPTO_SPARC_ARCH_H */
